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added by Kasia Aug. 16, 2012, 11:48 a.m.
Which gas is colorless and odorless?
ozone
methane
benzene
ammonia
Methane is the main component of natural gas piped into homes for domestic heating and cooking purposes. In order to assist in detecting leaks, a sulphur-like odorant is added the gas used by consumers.
Kasia
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Very interesting!
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